Multiply Mixed Numbers

(Chapter 10.3)

Partner Discussion

• How should you go about solving the math problem below? Work with your partner to create an algorithmic AND a visual representation explanation

• 5 x 2 7/8• (Five times two and seven eighths)

What does 5/1 mean?

5

1

Use the Distributive Property

• 5 x 2 7/8 =

• (5 x 2) + (5 x 7/8)

Partner Discussion

How should you go about solving the math problem below? Work with your partner to create an algorithmic AND a visual representation explanation.

2 1/2 x 3 1/5

Can you covert the number to an improper fraction before

multiplying?

Algorithym vs. Visual Representation

• Ann and Sheri are training for a bicycle race. On one day, Ann rides 3 and 1/5 miles. Sheri rides 2 and 1/2 times as far as Ann. How many miles does Sheri ride?

Find 2 1/2 x 3 1/5

Guided Practice

• Rewrite the problem by changing each mixed number into a fraction. Then multiply. Write the answer in simplest form.

• 4 2/3 x 3 2/5

Guided Practice

• Peter needs 1/8 of a cup of butter to make cookies and 1/8 of a cup of butter to make bread. How much butter in all does Peter need to make cookies and bread?

Homework

• PW 10.3